C Specification

The VkVideoEncodeH264NaluSliceInfoKHR structure is defined as:

// Provided by VK_KHR_video_encode_h264
typedef struct VkVideoEncodeH264NaluSliceInfoKHR {
    VkStructureType                         sType;
    const void*                             pNext;
    int32_t                                 constantQp;
    const StdVideoEncodeH264SliceHeader*    pStdSliceHeader;
} VkVideoEncodeH264NaluSliceInfoKHR;

Members

  • sType is a VkStructureType value identifying this structure.

  • pNext is NULL or a pointer to a structure extending this structure.

  • constantQp is the QP to use for the slice if the current rate control mode configured for the video session is VK_VIDEO_ENCODE_RATE_CONTROL_MODE_DISABLED_BIT_KHR.

  • pStdSliceHeader is a pointer to a StdVideoEncodeH264SliceHeader structure specifying H.264 slice header parameters for the slice.

Description

Std Slice Header Parameters

The members of the StdVideoEncodeH264SliceHeader structure pointed to by pStdSliceHeader are interpreted as follows:

  • flags.reserved and reserved1 are used only for padding purposes and are otherwise ignored;

  • if pWeightTable is not NULL, then it is a pointer to a StdVideoEncodeH264WeightTable that is interpreted as follows:

    • flags.reserved is used only for padding purposes and is otherwise ignored;

    • all other members of StdVideoEncodeH264WeightTable are interpreted as defined in section 7.4.3.2 of the ITU-T H.264 Specification;

  • all other members are interpreted as defined in section 7.4.3 of the ITU-T H.264 Specification.

Valid Usage (Implicit)

  • VUID-VkVideoEncodeH264NaluSliceInfoKHR-sType-sType
    sType must be VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_NALU_SLICE_INFO_KHR

  • VUID-VkVideoEncodeH264NaluSliceInfoKHR-pNext-pNext
    pNext must be NULL

  • VUID-VkVideoEncodeH264NaluSliceInfoKHR-pStdSliceHeader-parameter
    pStdSliceHeader must be a valid pointer to a valid StdVideoEncodeH264SliceHeader value

See Also

VK_KHR_video_encode_h264, VkStructureType, VkVideoEncodeH264PictureInfoKHR

Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

Copyright

Copyright 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0